<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<header>
    <h1>网页头部</h1>
</header>
<section>
    <hr>
    <h3>网页主体</h3>
    <a href="1.我的第一个网页.html">返回第一个网页</a>
    <hr>
</section>
<footer>
    <br>
    <h5>网页脚部</h5>
</footer>

</body>
</html>